The best thing about your collection: Slurm. Where did you get that? I want one. I think you've got the most impressive GBA collection I've seen. The only notable things you're missing (or maybe I missed?) are Breath of Fire II, Pokemon Emerald and More Friends of Mineral Town...
BTW, I agree, I love all the swag you've got. Most of my swag is in boxes...#092;
I received the Slurm can as a gift a few years back, actually. I'm pretty sure it came from ebay. It has a deck of Futurama-themed playing cards in it, which is also kind of neat.
I managed to find one on ebay if you're interested: http://cgi.ebay.com/...=item5645081e9f
Thanks for the praise on the GBA collection, it's a decade in the making and still going
I actually have a pretty huge list of GBA games that I'd still like to get complete, and what you mentioned are some of my biggest wants. I actually used to own a sealed Pokemon Emerald, but I traded it to a friend for a DS Lite and never managed to find another
Some of my other highest-priority holes to fill are Tactics Ogre, the Shining Soul games, Demikids games, Robopon games, Super Mario Advance 3, Boktai I&II, Mario vs Donkey Kong, Pokemon FireRed, and so on. Hell, if I ever have money again I'll expand into the ridiculous Game Boy territory and get all the FF Legends, Castlevanias, RE Gaiden, and maybe even Shantae if I'm feeling particularly insane. It's an unhealthy obsession but a fun collector niche considering how overlooked GBA stuff is compared to NES, SNES, and so on.